| 摘要: |
| 热带西太平洋暖池是全球大洋表面温度最高的区域,也是全球海-气能量交换年总量最大的海域。它的维持和变化不仅对El Nifio的发生、发展起着重要作用,而且对中高纬度大气环流的变化也有重要影响。近年来国内外对热带西太平洋暖池进行了许多实验和研究,取得了一些有意义的结果(王世平,1989; Wyrtki,1989;黄荣辉,1994;董敏,1994;Wajsowicz,1994)。但是这些研究多偏重于暖池对大气环流和东亚气候的影响方面,对暖池本身的主要特征及其变异方面的研究相对较少,而后者却是进一步了解发生在暖池区的海-气相互作用的过程,研究暖池在全球气候变化中的作用所不可缺少的。本文在分析1951-1990年间的SST资料和137°E,155°E,165°E断面观测结果的基础上,结合有关研究成果(符淙斌,1990),对暖池的形态、高温中心和热含量这三个主要特征及其变异特点进行了研究,并初步找出了暖池表面面积与南方涛动指数和副热带高压面积指数间的关系。 |
| 关键词: 西太平洋暖池、南方涛动、副热带高压 |
| DOI： |
| 分类号: |
| 基金项目:中国科学院海洋研究所调查研究报告第2703号 |
|
| THE TROPICAL WESTERN PACIFIC WARM POOL AND ITS RELATIONS TO THE SOUTHERN OSCILLATION AND SUBTROPICAL HIGH OVER THE WEST PACIFIC |
|
Weng Xuechuan, Zhang Qilong, Yan Tingzhuang
|
|
Institute of Oceanology,Chinese Academy of Sciences
|
| Abstract: |
| In this work, the form, high temperature center, and heat content of the Tropical Western Pacific Warm Pool were analyzed based on SST data and observations along Sections 137°E, 155°E and 165°E, and the relations of the warm pool’s area to the Southern Oscillation (SO) and to the Subtropical High over the West Pacific(SH) were studied. The results showed that the inter-annual variations of the warm pool’s form, high temperature center and heat content all related to the abnormality of the large scale air-sea system in the Tropical Western Pacific. There are close relations between the warm pool’s area and SO and the area index of SH. Although they have the same main period of 46.7 month, their variations differ in phase: the warm pool’s area variation lags 2, 3 months that of SO but leads by 3, 5 months that of the area index of SH. |
| Key words: TROPICAL WESTERN PACIFIC WARM POOL,SOUTHERN OSCILLATION,SUBTROPICAL HIGH OVER THE WEST PACIFIC |
